fixed the wrong dragging

[winnie] / src / wm.cc

diff --git a/src/wm.cc b/src/wm.cc
index 89b709f..7aa112b 100644 (file)
--- a/src/wm.cc
+++ b/src/wm.cc
@@ -247,8 +247,8 @@ static void motion(Window *win, int x, int y)
        if(left_bn && prev_x != -1) {
                int dx = x - prev_x;
                int dy = y - prev_y;
-               prev_x = x;
-               prev_y = y;
+               prev_x = x - dx;
+               prev_y = y - dy;
 
                Rect rect = win->get_rect();
                win->move(rect.x + dx, rect.y + dy);